Card insertion type prepayment electricity meter

Abstract

The utility model relates to the technical field of electricity meters, and discloses a plug-in card type prepayment electricity meter, which comprises a plug-in card type electricity meter, automatic clamping mechanisms are uniformly arranged on the inner wall of the plug-in card type electricity meter, each automatic clamping mechanism comprises a clamping installation shell assembly, and the outer wall of each clamping installation shell assembly is fixedly connected with the inner wall of the plug-in card type electricity meter. The inner wall of the clamping installation shell assembly is provided with an internal clamping assembly, the clamping installation shell assembly comprises a circular tube installation shell, the outer wall of the circular tube installation shell is fixedly connected with the inner wall of the plug-in type electricity meter, and the automatic clamping mechanism is arranged and can fixedly clamp a wire under the condition that normal installation of the wire is not hindered; according to the electric meter wire installation device, the connection position cannot be disconnected or loosened when the wire is dragged by external force, the whole electric meter wire installation effect is improved, compared with a motor for driving, clamping and fixing, the electric meter wire installation device is simple in structure and low in cost, does not occupy the internal installation space of an electric meter, and improves the practicability of the whole electric meter.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meters, in particular to a card-insertion prepaid electric meter. Background Art

[0002] Electric meter is the abbreviation of electric energy meter, which is an instrument used to measure electric energy, also known as watt-hour meter, fire meter, electric energy meter, kilowatt-hour meter. Prepaid watt-hour meter is also called quantitative watt-hour meter and IC card watt-hour meter. In addition to the metering function of ordinary watt-hour meter, the special thing is that users must buy electricity first and then use it. If the user does not continue to buy electricity after the electricity is used up, the power supply will be automatically cut off and stopped. After retrieval, application number 202122326109.2 discloses a card-insertion prepaid electricity meter, including a meter body, a card insertion slot is provided on the front of the meter body, a wire connection slot is provided on the bottom of the meter body, and an installation connection block is fixedly connected to the back of the meter body. A wire fixing mechanism is provided inside the wire connection slot, and a fixed installation mechanism is provided inside the installation connection block.

[0003] However, this wire fixing mechanism requires two motors to drive, which not only increases a lot of equipment costs, but also occupies a lot of installation space in the electric meter, causing the electric meter to be designed to be much larger than ordinary ones, making it impractical.

[0004] To this end, we propose a card-type prepaid electricity meter. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a card-insertion prepaid electricity meter.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A card-insertion prepaid electricity meter comprises a card-insertion electricity meter, wherein the inner wall of the card-insertion electricity meter is evenly provided with an automatic snap-fit ​​mechanism, and the automatic snap-fit ​​mechanism comprises a snap-fit ​​installation shell assembly;

[0008] The snap-fit ​​mounting shell assembly includes a round tube mounting shell, and the outer wall of the round tube mounting shell is fixedly connected to the inner wall of the plug-in card type electric meter, a conical mounting shell is fixedly installed on the front of the round tube mounting shell, and the outer wall of the conical mounting shell is fixedly connected to the inner wall of the plug-in card type electric meter, and an elastic mounting assembly is arranged at the rear end of the inner wall of the round tube mounting shell;

[0009] The inner wall of the snap-fit ​​mounting shell assembly is provided with an internal snap-fit ​​assembly, which includes an internal large circular tube, and the outer wall of the internal large circular tube is movably connected to the inner wall of the circular tube mounting shell, and the back side of the internal large circular tube is movably connected to the front side of the elastic mounting assembly.

[0010] Preferably, the elastic mounting assembly includes a threaded tube, and the outer wall of the threaded tube is threadedly connected to the rear end of the inner wall of the round tube mounting shell; an adjustment block is fixedly mounted on the back of the threaded tube, and a compression spring is fixedly mounted on the front of the threaded tube.

[0011] Preferably, an inner small round tube is fixedly mounted on the back of the inner large round tube, and the outer wall of the inner small round tube is movably connected to the inner wall of the compression spring, the threaded tube and the adjusting block respectively.

[0012] Preferably, an inner conical tube is fixedly mounted on the front side of the inner large circular tube.

[0013] Preferably, the outer wall of the inner conical tube is movably connected to the inner wall of the conical mounting shell.

[0014] Preferably, the inner wall of the inner conical tube is evenly provided with installation movable grooves.

[0015] Preferably, a clamping steel ball is movably mounted on the inner wall of the inner conical tube at a movable mounting groove.

[0016] Preferably, the outer walls of the clamping steel balls are movably connected to the inner walls of the circular tube mounting shell and the conical mounting shell respectively. Beneficial Effects

[0017] The utility model provides a card-insertion prepaid electricity meter, which has the following beneficial effects:

[0018] (1) A card-insertion prepaid electricity meter of the present invention is provided with an automatic locking mechanism, which can fix and clamp the wires without hindering the normal installation of the wires, so that the connection of the wires will not be disconnected or loosened when the wires are pulled by external forces, thereby improving the installation effect of the wires of the entire meter. Compared with the use of a motor to drive the clamping and fixing, the device has a simple structure and a low cost and does not occupy the installation space inside the meter, thereby improving the practicality of the entire meter.

[0019] (2) This plug-in prepaid electricity meter is provided with an elastic mounting assembly. The elastic mounting assembly enables the internal snap-fit ​​assembly to be moved backwards by compressing the compression spring when the wire is installed, thereby facilitating the installation of the wire. At the same time, after the installation is completed, the compression spring uses its own elastic force to move the internal snap-fit ​​assembly to its original position so that the wire can be clamped and fixed, further improving the use effect of the entire device.

[0020] (3) The card-type prepaid electricity meter is provided with a threaded tube and an adjustment block. The threaded tube on the elastic mounting assembly can be quickly disassembled or installed by rotating the adjustment block, thereby improving the disassembly and assembly efficiency of the entire elastic mounting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0022] Figure 2 This is a front structural diagram of the automatic locking mechanism of the utility model;

[0023] Figure 3 This is a front structural diagram of the snap-fit ​​mounting shell assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the front structure of the elastic mounting assembly of the utility model;

[0025] Figure 5 It is a front structural schematic diagram of the internal locking assembly of the utility model.

[0026] Legend: 10. Card-type electric meter; 11. Automatic snap-fit ​​mechanism; 12. Snap-fit ​​mounting shell assembly; 13. Internal snap-fit ​​assembly; 14. Circular tube mounting shell; 15. Conical mounting shell; 16. Elastic mounting assembly; 17. Threaded tube; 18. Adjustment block; 19. Compression spring; 20. Internal large circular tube; 21. Internal small circular tube; 22. Internal conical tube; 23. Mounting movable groove; 24. Clamping steel ball. DETAILED DESCRIPTION

[0027] Embodiment 1: A card-insertion prepaid electricity meter, such as Figure 1 - Figure 2 As shown, it includes a card-insertion meter 10, the inner wall of which is evenly provided with an automatic snap-fit ​​mechanism 11, the automatic snap-fit ​​mechanism 11 includes a snap-fit ​​mounting shell assembly 12, and the outer wall of the snap-fit ​​mounting shell assembly 12 is fixedly connected to the inner wall of the card-insertion meter 10, and the inner wall of the snap-fit ​​mounting shell assembly 12 is provided with an internal snap-fit ​​assembly 13. By providing the automatic snap-fit ​​mechanism 11, the automatic snap-fit ​​mechanism 11 can fix and clamp the wires without hindering the normal installation of the wires, so that the connection of the wires will not be disconnected or loosened when being pulled by external force, thereby improving the installation effect of the wires of the entire meter. Compared with using a motor to drive the clamping and fixing, the device has a simple structure and a low cost and does not occupy the installation space inside the meter, thereby improving the practicality of the entire meter.

[0028] Embodiment 2: Based on Embodiment 1, Figure 2As shown, the snap-fitting mounting shell assembly 12 includes a circular tube mounting shell 14, and the outer wall of the circular tube mounting shell 14 is fixedly connected to the inner wall of the card-type electric meter 10, a conical mounting shell 15 is fixedly installed on the front of the circular tube mounting shell 14, and the outer wall of the conical mounting shell 15 is fixedly connected to the inner wall of the card-type electric meter 10, an elastic mounting assembly 16 is arranged at the rear end of the inner wall of the circular tube mounting shell 14, the elastic mounting assembly 16 includes a threaded tube 17, and the outer wall of the threaded tube 17 is threadedly connected to the rear end of the inner wall of the circular tube mounting shell 14, an adjusting block 18 is fixedly installed on the back of the threaded tube 17, and a compression spring 19 is fixedly installed on the front of the threaded tube 17, by providing the elastic mounting assembly 16, the elastic mounting assembly 16 can make the internal snap-fitting assembly 13 when the wire is installed to compress the compression spring 19 backward to move, so as to facilitate the installation of the wire, and at the same time, after the installation is completed, the compression spring 19 will use its own elastic force to move the internal snap-fitting assembly 13 to the original position so that it can clamp and fix the wire, further improving the use effect of the entire device.

[0029] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 5 As shown, the internal snap-fit ​​assembly 13 includes an internal large circular tube 20, and the outer wall of the internal large circular tube 20 is movably connected to the inner wall of the circular tube mounting shell 14, the back of the internal large circular tube 20 is movably connected to the front of the compression spring 19, the back of the internal large circular tube 20 is fixedly installed with an internal small circular tube 21, and the outer walls of the internal small circular tube 21 are respectively movably connected to the inner walls of the compression spring 19, the threaded tube 17 and the adjusting block 18, and the front of the internal large circular tube 20 is fixedly installed with an internal conical tube 22, and the outer wall of the internal conical tube 22 is movably connected to the conical mounting shell 14. The inner wall of the mounting shell 15 is movably connected, and the inner wall of the internal conical tube 22 is evenly provided with mounting movable grooves 23. The inner wall of the internal conical tube 22 is movably installed with clamping steel balls 24 at the mounting movable grooves 23, and the outer walls of the clamping steel balls 24 are movably connected to the inner walls of the circular tube mounting shell 14 and the conical mounting shell 15 respectively. By providing a threaded tube 17 and an adjusting block 18, the threaded tube 17 on the elastic mounting assembly 16 can be quickly disassembled or installed by rotating the adjusting block 18, thereby improving the disassembly and assembly efficiency of the entire elastic mounting assembly 16.

[0030] The working principle of the utility model is as follows: the wire is inserted into the inner conical tube 22 through the front end of the internal clamping assembly 13, the wire drives the inner conical tube 22 to move backward along the conical mounting shell 15 through the clamping steel ball 24, the inner conical tube 22 compresses the compression spring 19 through the inner large round tube 20 and drives the inner small round tube 21 to move backward along the round tube mounting shell 14, the inner conical tube 22 drives the clamping steel ball 24 to move to the round tube mounting shell 14 so that the inner conical tube 22 and the round tube mounting shell 14 are spaced apart. There is space for the clamping steel ball 24 to move. At this time, the wire can smoothly pass through the internal conical tube 22, the internal large round tube 20 and the internal small round tube 21 in sequence for fixed installation. When the installation is completed, the entire wire is pulled forward, and the wire will drive the clamping steel ball 24 to move forward to the conical mounting shell 15. The conical mounting shell 15 compresses and moves the clamping steel ball 24 into the internal conical tube 22, and the clamping steel ball 24 presses and clamps the wire in the internal conical tube 22, so that the wire is fixed.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A card-insertion prepaid electricity meter, comprising a card-insertion electricity meter (10), characterized in that: The inner wall of the card-insertion type electric meter (10) is evenly provided with automatic snap-fit ​​mechanisms (11), and the automatic snap-fit ​​mechanisms (11) include snap-fit ​​installation shell components (12); The snap-fit ​​mounting shell assembly (12) comprises a circular tube mounting shell (14), wherein the outer wall of the circular tube mounting shell (14) is fixedly connected to the inner wall of the plug-in card type electric meter (10), a conical mounting shell (15) is fixedly mounted on the front of the circular tube mounting shell (14), wherein the outer wall of the conical mounting shell (15) is fixedly connected to the inner wall of the plug-in card type electric meter (10), and an elastic mounting assembly (16) is arranged at the rear end of the inner wall of the circular tube mounting shell (14); The inner wall of the snap-fit ​​mounting shell assembly (12) is provided with an internal snap-fit ​​assembly (13), and the internal snap-fit ​​assembly (13) includes an internal large circular tube (20), and the outer wall of the internal large circular tube (20) is movably connected to the inner wall of the circular tube mounting shell (14), and the back surface of the internal large circular tube (20) is movably connected to the front surface of the elastic mounting assembly (16).

2. The card-insertion prepaid electricity meter according to claim 1, characterized in that: The elastic mounting assembly (16) comprises a threaded tube (17), and the outer wall of the threaded tube (17) is threadedly connected to the rear end of the inner wall of the circular tube mounting shell (14); an adjusting block (18) is fixedly mounted on the back of the threaded tube (17), and a compression spring (19) is fixedly mounted on the front of the threaded tube (17).

3. The card-insertion prepaid electricity meter according to claim 2, characterized in that: An inner small round tube (21) is fixedly mounted on the back of the inner large round tube (20), and the outer wall of the inner small round tube (21) is movably connected to the inner wall of the compression spring (19), the threaded tube (17) and the adjustment block (18) respectively.

4. The card-type prepaid electricity meter according to claim 1, characterized in that: An inner conical tube (22) is fixedly mounted on the front side of the inner large circular tube (20).

5. The card-type prepaid electricity meter according to claim 4, characterized in that: The outer wall of the inner conical tube (22) is movably connected to the inner wall of the conical mounting shell (15).

6. The card-type prepaid electricity meter according to claim 4, characterized in that: The inner wall of the inner conical tube (22) is evenly provided with mounting movable grooves (23).

7. The card-type prepaid electricity meter according to claim 6, characterized in that: A clamping steel ball (24) is movably mounted on the inner wall of the inner conical tube (22) at a mounting movable groove (23).

8. The card-type prepaid electricity meter according to claim 7, characterized in that: The outer wall of the clamping steel ball (24) is movably connected to the inner wall of the circular tube mounting shell (14) and the inner wall of the conical mounting shell (15).

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